Welding machine



E. EZENENSTCJK WELDING MACH-HNE Filed July 2, 199" my g 3924.

awww E. A HENENSTCK WEDZNG MACHINE Filed July 2. 1925 2 Sheets-Shee 2 AMW/w y jZ/J 0W mental July 1, 1924.

y 1,499,499 PATENT orrlcs.

EDGAR A. BIENEISTOK, F MILWAUKEE, WISCONSIN, ASSIGNOR T0 IILWAUKEE TANK WORKS, 0F MILWAUKEE, WISCONSIN.

WELDING YApplication led July 2,

provide an apparatus wherein provision is made for imparting movement to the article welded, whilethe welding torch is anchored and guided with relation to the seam to be operated upon. a

A furtherobject resides in the provision of an a paratus embodying the above characteristics wherein the torch automatically adjusts itself with relation to the article to be welded and the same is guided in proper alignment with the seam f to be operated upon.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the novel construction, combination v and arrangement/ of parts substantially as hereinafter described and more particularlyv defined by the appended claims, it being understood that such changes in theprecise embodiment of theY herein disclosed invention may be made as eomewithin the scope of the claims.

In the accompanying drawingis illustrated one complete example of the physical embodiment of the present invention constructed according yto the best mode so far devised for the practical application of the princi les the f.. l.

In tlie drawings, Figure 1 is an velevational view of an apparatus constructed in accordupon, which is ance with the present invention I Figure2 is an end elevation of the same. Referring now more particularl to the accompanying drawings wherein t e apparatus illustrated is particularly designe or r welding the end seams of'cylindrical tanks, the numeral 1 designates the tank operated rovided with heads 2 havperi 'heral gauges 3 which engage the si e wa 4 and cooperate therewith to form a track 5.

The tank 1 is supported on the spaced rollers 6 which are mounted on the shafts 7 and 8, the shafts beingjournaledinthestandards MACHINE.

1923. Serial No. 649,017.l

9. As best illustrated in Figure 1, the sha-'ft 8 is extended rearwardly of the. machine.

and -journaled in the motor standard 10 on which ismounted a motor 11 operatively connected with the shaft 8 by means of the gear train 12. Thus it will be seen that by means of the motor 11 ower is transmitted to the shaft 8 which, t rough the rollers 6 securedthereto and engaging the side wall 4, rotates the tank 1 during the welding operation.

Engaging the rear head 2 of the tank is a horizontal roller 13 carried by the standard 14, which roller prevents rearward longitudinal movement of the tank on thev ro ers 6. i

Anchored to the floor or any suitable base,

forward ofv the rotating mechanism above v described, is a bracket 15 having pivoted thereto an 'arm A16 on whichis adjustably mounted the bracket'l? that serves to ca a welding torch 18 of conventional or sta ard construction. The upper end of the arm 16 carries a grooved roller 19 adapted to engagethe Vtrack 5 and travel thereon as the tank l'is rotated. Thus it will be seen that the torch 18, after being properly adjusted in its bracket 17 so as to bring 1t intothe desired position with relation to the annular seam between the side wall 4 and head 2, will be -held and guided-in that relative position as the tank is'rotated. -Attention is also directed to the fact that because of the pivotal mounting of the arm 16, the same will readily accommodate itself to tanks of various lengths and will lfurther compensate vfor irregularities in the edges of the tank.

From the' foregoin description taken in connection with the rawings, it is obvious that a comparatively' simple apparatus has date tanks of various dimensions, and greatly facilitates the seam welding operation, and

.reduces the cost of the same by eliminating manual assistance.

It is further obvious `that while I have shown and described an apparatus for welding the annular end seams, the invention,

-with slight modification, readily .adapts itself to the vwelding of longitudinal on strai ht seams.

.I c aim:

1. In a seam welding apparatus the combination of, means for imparting movement been provided which will readily accommo. f

to the article to be Welded, a pivotally anchored arm, a grooved roller carried by said armand engageable with the edge of said article, whereby the arm is guided with relation thereto, and a Welding torch carried by' said arm.

2. In a seam welding apparatus for cylindrical tanks the combination of, spaced rollers for Supporting said tank, means for driving certain of said rollers to impart rotary movement to the tank, a pivotal arm positioned adjacent one end of the tank', a grooved roller carried yby the arm and engageabl'e vwith the edge of said tank whereby the arm is guided with relation thereto, and a torch carried by said arm.

In testimony that I claim the foregoing I have hereunto setmy hand at Milwaukee, in the county of Milwaukee and State of A lvisconsin.

EDGAR A. BIENENSTOKT 

